Apostle Islands topographic map

Average elevation: 856 ft

Average elevation: 994 ft

Average elevation: 761 ft

A system of seventeen locks connects Lake Winnebago to Lake Michigan at Green Bay, an elevation drop of about 150 feet (45 m). This lock system is located along the lower Fox River and starts at the northwest corner of Lake Winnebago in the city of Menasha and ends at the mouth of Green Bay. One of the locks,…

Average elevation: 833 ft

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Average elevation: 873 ft

Average elevation: 1,499 ft

Average elevation: 951 ft

Jefferson's elevation is 797 ft (243 m) at the center of downtown.

Average elevation: 823 ft

Average elevation: 997 ft

Average elevation: 846 ft

Average elevation: 1,463 ft

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Average elevation: 1,624 ft

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Average elevation: 1,381 ft

According to the U.S. Census Bureau, the county has a total area of 464 square miles (1,200 km2), of which 456 square miles (1,180 km2) is land and 8.7 square miles (23 km2) (1.9%) is water. The Mecan River, Buffalo Lake, and Puckaway Lake lie within Marquette County. The highest altitude in the county is a…

Average elevation: 850 ft

Average elevation: 794 ft

Average elevation: 1,161 ft

Average elevation: 1,161 ft

Average elevation: 883 ft

Average elevation: 922 ft

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Average elevation: 764 ft

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Average elevation: 1,699 ft

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Average elevation: 604 ft

The uppermost lock and dam on the Upper Mississippi River is the Upper St. Anthony Falls Lock and Dam in Minneapolis. Above the dam, the river's elevation is 799 feet (244 m). Below the dam, the river's elevation is 750 feet (230 m). This 49-foot (15 m) drop is the largest of all the Mississippi River locks…

Average elevation: 666 ft

Average elevation: 1,640 ft

Average elevation: 889 ft

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Average elevation: 594 ft

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Average elevation: 686 ft